Charging watch with Sherpa15, times out after a minute

thog
thog Member Posts: 3 ✭✭

I'm preparing for a backpacking trip and want to charge my Epson J-307 watch with my Sherpa15 that I bought at REI. The only trouble is, after one minute the charging stops. Is there a way I can force the sherpa15 to do low amp charging for longer?

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